/Device Smoke grenade and surveillance causing aggro

[Zormico1]

As the title says.   Noticing that Smoke Grenade when prepping an unaggroed group will trigger them attack about 90% of the time.

 

Only thing I can think of that is causing this is Enhancement Achille's heel chance to reduce res  but that not slotted Smoke Grenade.  I do have it slotted in Surveillance and in AR's Burst.

 

I don't see a -res debuff when using Smoke Grenade, only the -tohit debuff.

 

[Psyonico]

A proc will cause aggro in either of these attacks.